API Monitoring

Monitor your APIs continuously — before failures become incidents

AlertSite checks your REST and SOAP APIs from 350+ global locations — validating availability, response time, and data integrity — and alerts your team immediately when something breaks.

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AlertSite API monitor configuration screen showing REST endpoint settings

Monitor any API type

AlertSite monitors REST and SOAP APIs — including authenticated endpoints using API keys, OAuth tokens, and custom headers. No code required for basic monitors.

Multi-step API transactions

Chain API calls together into a single transaction — authenticate, create a resource, verify it, clean up — and monitor the full workflow as a single end-to-end test.

Response validation

Check that every response contains the expected data. Validate JSON fields, status codes, response time thresholds, and response body content — and alert if anything is wrong.

OpenAPI import

Import your OpenAPI (Swagger) specification and AlertSite generates monitors for every endpoint automatically — so your monitoring keeps pace with your API development.

Mean time to repair

Reduce API MTTR with monitoring that diagnoses fast

When AlertSite detects an API failure, it captures the full HTTP response — status code, response body, timing breakdown, and error message — so your team can diagnose and resolve issues without needing to reproduce the failure manually.

AlertSite API monitoring detail view showing response analysis

Start monitoring your APIs today

Try AlertSite free for 14 days — set up your first API monitor in minutes.